If you're shopping for a used Dodge Ram pickup truck from the pre-2011 era--before the Ram brand was split off--you probably have a special work need in mind for it. The least expensive used models will likely have V-6 and V-8 engines; try to find a Quad Cab or a Mega Cab if you're carrying passengers just as often as cargo, though both will limit the bed length available. For the best tow ratings, the monster V-10 from the Viper found its way into the Dodge Ram--and there's even a super-sport, manual-shift version dubbed the SRT10, if what you really need is a 0-60 mph champ.